variants or less commonly roundtrip or round-trip. plural round trips also roundtrips or round-trips. often attributive. : a trip to a place and back usually over the same route.
Also known as “return air tickets,” round-trip tickets are flights from and back to the same location of origin. A one-way ticket, on the other hand, only allows you to fly to your destination, not back from it.
An onward ticket is a proof of a booked train, bus or airline ticket originating from the country about to be entered. An onward ticket reflects any of these: a round-trip airline ticket. an airline or train or bus ticket from one country to another.
Like many other countries, France does not require that you have proof of booked plane tickets. However, you must make sure to let the immigration officers know that you will be leaving the country and do not intend to stay for an identified period.
Proof of onward travel means that airlines and governments want to make sure you are not illegally immigrating to their country, so they need to see proof of a return ticket home.
Round-trip tickets are usually cheaper than one-ways, sometimes significantly so. NerdWallet compared fares across multiple international routes and found that, typically, buying two one-way tickets costs 20% more than a single roundtrip.
If the aircraft lands and doesn't have any passengers booked for the flight back to its home base, it will likely have an empty leg flight. These flights may also be referred to as empty flights, ferry flights, repositioning legs, dead-heads, or one-way flights.